haridas_mandal

2 years ago

Consider the two statements :
Statement A : Frictional Force can be zero even though the contact surface is rough.
Statement B : Even though there is no relative motion between surfaces, friction force force may exists between them.
Options a) Both A & B are true b) A is true B is false.
c) A is false but B is true. d) Both A & B are false.
Which and why is the right answer?